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use std::fs;
use std::io::prelude::*;
use std::io::BufReader;
use std::path::Path;
use walkdir::{DirEntry, WalkDir};
use xtask::project_root;
fn is_exclude_dir(p: &Path) -> bool {
// Test hopefully don't really need comments, and for assists we already
// have special comments which are source of doc tests and user docs.
let exclude_dirs = ["tests", "test_data", "assists"];
let mut cur_path = p;
while let Some(path) = cur_path.parent() {
if exclude_dirs.iter().any(|dir| path.ends_with(dir)) {
return true;
}
cur_path = path;
}
false
}
fn is_exclude_file(d: &DirEntry) -> bool {
let file_names = ["tests.rs"];
d.file_name().to_str().map(|f_n| file_names.iter().any(|name| *name == f_n)).unwrap_or(false)
}
fn is_hidden(entry: &DirEntry) -> bool {
entry.file_name().to_str().map(|s| s.starts_with('.')).unwrap_or(false)
}
#[test]
fn no_docs_comments() {
let crates = project_root().join("crates");
let iter = WalkDir::new(crates);
let mut missing_docs = Vec::new();
for f in iter.into_iter().filter_entry(|e| !is_hidden(e)) {
let f = f.unwrap();
if f.file_type().is_dir() {
continue;
}
if f.path().extension().map(|it| it != "rs").unwrap_or(false) {
continue;
}
if is_exclude_dir(f.path()) {
continue;
}
if is_exclude_file(&f) {
continue;
}
let mut reader = BufReader::new(fs::File::open(f.path()).unwrap());
let mut line = String::new();
reader.read_line(&mut line).unwrap();
if !line.starts_with("//!") {
missing_docs.push(f.path().display().to_string());
}
}
if !missing_docs.is_empty() {
panic!(
"\nMissing docs strings\n\n\
modules:\n{}\n\n",
missing_docs.join("\n")
)
}
}
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